Timer that will close the game after 60 seconds

1

I am trying to make a game where, upon starting, a timer will begin. After 60 seconds, app.stop() will be called.

Also how do I show a timer on HUD?

2

import com.jme3.app.FlyCamAppState;
import com.jme3.app.SimpleApplication;
import com.jme3.font.BitmapFont;
import com.jme3.font.BitmapText;
import com.jme3.system.AppSettings;

/**

  • Timer that will close the game after 60 seconds
  • @author yanmaoyuan

*/
public class EndIn60S extends SimpleApplication {
final static String FORMAT = “End in %.1fs.”;
BitmapText uiText;

final static float TOTAL_SECOND = 60;
float timeInSecond;

public EndIn60S() {
    super(new FlyCamAppState());
}

@Override
public void simpleInitApp() {
    // show mouse
    flyCam.setDragToRotate(true);
    
    // Time
    timeInSecond = 0;
    
    // GUI
    BitmapFont fnt = assetManager.loadFont("Interface/Fonts/Default.fnt");
    uiText = new BitmapText(fnt, false);
    uiText.setText(String.format(FORMAT, TOTAL_SECOND-timeInSecond));
    uiText.setLocalTranslation(0, 20, 0);
    
    guiNode.attachChild(uiText);
    

}

@Override
public void simpleUpdate(float tpf) {
    timeInSecond += tpf;
    
    // update gui
    uiText.setText(String.format(FORMAT, TOTAL_SECOND-timeInSecond));
    
    if (timeInSecond >= TOTAL_SECOND) {
        stop();
    }
}

public static void main(String[] args) {
    AppSettings settings = new AppSettings(true);
    settings.setTitle(String.format(FORMAT, TOTAL_SECOND));
    
    EndIn60S app = new EndIn60S();
    app.setSettings(settings);
    app.start();
}

}

3

Thank you! That was exactly what I needed! I spent all day trying to figure that out.